Car-truck.



Ny. 895,157. PATLNTBD Aim. 4, 19oa.-- l s. P.k BUSH.

.Y GAR TRUCK APPLICATION FILED APR. 25, 1901. l

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No. 895,157. PATENTED AUG. 4', 1908.

S. PL' BUSH. -V

CAR TRUCK.

l APPLICATION FILED APB.. Z5, 1907.

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40 members having a Uivifrnn 'srnrns ienrnivi"l onirica.

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To all 'whom it may concern:

Be it known that I, SAMUEL PRESCOTT 'Busin Aa citizen ofthe United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Car-Trucks, of which the following is a specification.

)ly invention relates to ear trucks and has lfor its object the provision of a device of this jocharaeter constructed in suclrinanner that the body of a car supported thereby will be permitted a limited transversebodily movement with relation to the wheels of-the truck, and in addition thereto to provide spring bearings for the body of the car.

Further-object-s and advantages of the invention will be set forth in the detailed description which now follows.

In the accompanying drawing: Figure 1 is a sideelevation of a car truck constructed in accordance with the invention,'Fig. 2 is an end view partially in section of said truck, Fig 3 is a plan View of the truck, and, Fig. 4 is a detail sectional view upon line :c-fc of Fig. 1.

Like 'numerals designate corresponding p parts in all of the 'figures of the drawing.

Referring to the drawing, the numerals 5 `designate car wheels which are carried by axles 6, said wheels and axles being of the usual andwell known construction. Mounted- 7 upon the ends ofthe axles 6 are journal boxes 7, said journal boxes likewise being ofthe usual construction and being provided with ears 8. The side members 9 of the trucks are mounted to rock upon the journal boxes, the under faces of that portion of the side inembers that bear u on the journal boxes being rounded or beve ed ofi as at 10 and said side lurality of sockets 7.1 cast integral therewith for the reception of bolts 12, the heads 13 of these bolts resting in the sockets and said bolts passing through the lugs 8 and having nuts 14 threaded upon their lower ends. Itis to be understood that the-se bolts lie upon the outsideof the journal boxes proper.' The bottom straps 15 of those portions of the side members that surround the journal boxes lie a sufficient distance below the bottom of the journal boxes to clear the lower ends of the bolts 12 and the nuts 14, the side members having a bodily swinging lateralniovement with relation to the journal boxe s, said side members rocking t5 upon the rounded or beveled surfaces 10 centralini;

y specification of Letters rateiitf. Patented Aug. 4, 190s. Application n ied Apta 25, 1901. seran Nq. 370,122.

which rest upon the up er faces of the ears 8 and upon the tops of tie journal boxes.

The bottoms of the sockets 11 are rounded as at 16, the heads of the bolt'bearing against said rounded bottoms as is best illustrated in Fig. 4. Itwill therefore be seen that these bolts hold the side niembersin position and hold them firmly against vertica movement,

btpermit them to rock. There is, however,

adapted to have the end bolster, not shown,

of a car, pivoted thereto in the usual and well known manner. This bolster carries lugs 19 which enter the open ends of springs 20. The springs 20 are in turn surrounded by heavier springs 21, the lower ends of all of said s rings bearing upon a spring plank 22.

his spring plank 22 passes through a st-irrup 23 formed by vertical ribs 24 and a horizontal rib 25. This horizontal rib carries a T-rail 26 (see Fig. 2) and upon this T-rail rests a bearing plate 27. Lugs 28 carried by said bearing plate limit the transverse movement of said plate with relation to the -ral. Lugs 29 carried by the plate 27, project through the spring plank 22 and enter the lower open ends of the springs 20. By referring to Fig. 1, it will be seen that the spring plank is of inverted U-sha e in cross section. It is to be understoo thatk the structure just described is duplicated at both ends of the bolster 18.

The operation of the device is as follows: The springs 2 0 and 21 provide a spring bearing for the bolster 18 and consequently for the body of the car. A portion of the king bolt that pivots the end bolster ofthe car, not shown, to the bolster 18 has been indicated at 30. The lower end of this king bolt passes through the spring plank22. Any transverse movement of the sequently be imparted to the spring plank, so that the spring plank and the bolster will move bodily together to prevent the springs olster will conv 2O and 21 being thrown out o'f vertical alinement. W'hen, in roundin curves, the bolster 1S tends to move bodi y in a transverse direction with relation to the rails 31, a limited transverse movement of this character 35 member connectin the side frames.

l 40 verse member connecting said side frames, a

will be possible by virtue of the fact that the bolster 18 which of course supports the entire weight of the car, rests upon the T-rail 26.

Movement of the bolster to the right for instance in Fig. 2, would throw this T-rail bodily over to the right and tilt the side members 9, said side members rocking as has been hereinbefore set forth, upon their rounded surfaces 10.

From the foregoing description, it will be seen that sim le and efficient means are herein provide( for'accom lishingthe objects of the invention, but w ile the elements shown and described are well adapted to serve the purposes for which they are intended, it is to be understood that the invention is not limited to the precise construction set forth, but includes within its urview suc-h changes as may be made wit 'n the seo e of the appended claims.

l( hat I claim, is:

1. In a truck, the combination with the journal boxes, of side frames having a lateral `swinging motion and having their bearings on the journal boxes, and a transverse member adapted to have a car body pivoted thereto, sai transverse member connecting thev side frames.

2. In a truck, the combination with the journal boxes, of side frames having a lateral swinging motion and having their bearings on the journal boxes, and a 'yielding transverse member adapted to have a car body pivoted thereto, said yielding transverse 3. In a truck, t e combination with the journal boxes, of side frames having a lateral swinging motion, said side frames having their bearings on the journal boxes, a transof independent vertical movement with relation to the side frames, and means for im-v parting the horizontalmovements of the bolster to the side frames.

5. In a truck, the combination with journal boxes, of side frames adapted to swing laterally with relation to said journal boxes, said side frames having bearings at the cenr ter, and a bolster ada ted to move laterally and supported by sai central bearings.

6'. In a truck, the, combination with jour. nal boxes supported h the axles of said truck, of a arof side ames bearing upon the up er aces of said journal boxes and adapted to be rocked thereon, a transverse member connecting said side frames at ap proximately their central portions, a bolster, and springs interposed between said bolster and said transverse member.

7. In a truck, the combination with jourl nal boxes supported bj' the axles of said'4 truck, of a pair of side rames bearing upon the up er faces of said journal boxes and adapted to berocked thereon, a transverse member connecting said side frames at approximately their central portions, 'a bolster, springs interposed between said bolster and said transverse member, and means for preventing vertical movement of the side frames with relation to the journal boxes.

8. In a truck, the combination with the journal boxes, of a side frame having open ortions adapted to surround said journal 8G oxes and having rounded faces adapted to rest upon the upper faces of the journa boxes and bolts assing through ortions of sai frames an ada ted to hol said frames in Y en 'agement wit 1 the journal boxes, but said .8! boIts permitting the frames to rock with rebolster, and springs interposed between said bolster and said transverse member.

4. In a truck, the combination with ournal boxes, of side frames havin their ear- 45 ings on the journal boxes, said rames being capable of a lateral swinging motion with relation to said journal boxes, a bolster capable lation to the journal boxes. i

In testimony whereof I ailix my signature in presence of two witnesses.

4SAMUEL PREsco'r'r BUSH.

Witnesses:

JOHN H. MCCORMICK, T. V. TAYLOR. 

